Snap-fastening.



0.1. PAULSON.

SNAP FASTENING.

APPucATloN FILED'luNE 5. 19H.

www@ Patented Apr. 9,1918.-

IN VEN TOI? A TTOH/VEY tra CHARLES J. PAULSON, 0F BRGKLYN, NEW YORK.

Shl'Ay-FASTENING.

' Specication of Letters Patent.

Application lef .Tune 5, 191'?. lSerial No. ].72,948.

To @ZZ whom z' may concern:

Be it known that CHARLES d. Farmsen, a subject of the King or Sweden, residing at the borough of'Broolrlyn, in the county of Kings and State of New York, has in vented a new and useful. improvement in Snap-Fastenings, oi which the following is a specification. f

This invention relates to fastenings for garments and other purposes, and my improvement refers particularly to that class of these devices known as snap fasteners, wherein one member, as a male portion, engages a female portion of another member, and is frictionally or tensionally retained therein.

Brieiy,my invention consists of a female member composed of a plate of spring-like material, such as metal, said platev being folded upon itself and having alined orifices, the orifice in one of the folded parts being of suiiicient diameter to freely receive the engaging portion. of the male member, and the other folded part, which is located. at the rear of the first named folded part, having an orifice which is of slightly less diameter 'than the engaging portion of the male member. The part having the smaller oriiiee is so devised that said orifice may be expanded under the application of pressure from the entering portion of the male mem-- ber, and also capable of resuming its non mal contracted form to grip said engaging portion,

To this end, the material of that part of the female member having the smaller orilice, may be slit or separated so as to accord to the oriiice the properties of expanding and contracting.

rlhere is thus set up in the female member a support or containment for the shanlrof a button or male fastening member of usual character, the head of which latter is enabled to enter freely through the larger oriiice in the one part of the female member, and to, by pressure, be forced into a locking engagement with the smaller orifice in the other part of the female member.

By the means described, the unslitted part of the female member affords a rigid bearing or socket which lends strength to the fastening and serves as a base or support for the more flexible and actually engaging fastening element, which, as stated, is in the form of a slitted or separated rearward part of the folded over plate and provided with an expansible and contractible smaller orifico.

Other features and advantages of my said invention Will hereinafter appear.

lfn the drawing :e

Figure 1 is a perspective view of a blank which constitutes the female member of my improved fastening.

Fig. 2 isa cross sectional view of said blank as folded and formed into operative condition.

Fig. 3 is a similar view, also showing a male member engaged with said female member, and

Fig. 4- is a plan view of the male member.

ln carrying out my invention, for the production of the female fastening member, l tal/:e a strip of spring-like material, like half hard brass, for example, as indicated in Fig. l and provide it, as by stamping, with the orifices l, 2, then folding the strip upon itself, as over the line 3, to aline the axes of' said orifices.

The part il, having the larger orifice l, comprises the 'front of the female fastening member, and the part 5, having the smaller orifice 2, comprises the rear of said member. Said part is slitted or slotted, as at 6, the slits or slots extending from the orifice 2, to render elastic or yielding that portion of the material of part 5 which borders on the per imeter of slot 2, whereby pressure applied at the' perimeter of said orifice Q, as under the attac-lr of a button or male member of a Patented Apre il, figlie., l

fastening, will cause said orifice 2 to expand 'the orifice l may be sunk in a concave depression formed in the part 4 of the female member, and 'that a concentric shoulder may surround said depression, to thus allow for the aforesaid conformation, While maintaining desirable compactness in said female member.

The contour of the male member base surface opposed to the female member may conform to the contour of the latter, in order that the two members may it snugly together when in engagedi'relation.

In the operation of this invention, the two members are separately attached -to the parts of a garment or other article which they are to fasten, vand then the head Z of the male member may be freely introduced into oriice 1, and,'under pressure, caused to snap through the orifice 2, whereby the shank 8 will be 'lodged in both orifices and the head '7 will be tensionally held against withdrawal through its engagement with the rear edge of orifice 2.

Disengagement of themembers is eiected in the manner usual with these devices, by the application of pressure to overcome the tensional hold of the part 5, causing the orifice 2 to expand and thus permitting the withdrawal of head 7.

l claim:

1. A female member for snap fastening devices, comprising superposed plate portionso having alined oriices of diii'erent diameters, the larger oriice being of a diameter to freely receive the head -of a male portion, and the smaller orice being of a diameter less than that of such head, the material oi`\the plate portion with the 'smaller orifice being of spring-like character, and having slits communicating therewith, whereby said orifice may be expanded under pressure appliedby sudh head, to receive and tensionally retain the latter.

2. ln a snap fastening device comprising a male member having a head and shank, the combination of a female membercomposed of a folded plate, whose portions are in superposed relation, with alined reception orifices for said head, the orifice in the rear portion being smaller than said `head and having entering slits, whereby said orifice may be expanded under pressure applied by said head, to receive and tensionally retain the latter.

In testimony whereof, he has signed his name to this specication in the presence of two subscribing witnesses, this first day ot' .l une, 1917, v

CHARLES J. PAULSON. Witnesses:

J. E. SIMPSON, J. W. LAMOREAUX. 

